Helix prosthesis



FIG. 1 is a perspective view of a left-hand helix showing our new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a side elevation view thereof;

FIG. 5 is an opposite side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view of a right-hand helix showing our new design;

FIG. 9 is a rear elevation view thereof;

FIG. 10 is a front elevation view thereof;

FIG. 11 is aside elevation view thereof;

FIG. 12 is an opposite side elevation view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

The broken lines shown are included for the purpose of illustrating the unclaimed portions of the article and form no part of the claim. 

CLAIM The ornamental design for a helix prosthesis, as shown and described. 